Home / 20,101.23-30,151.92-8,406.24

Finding the Fourth Proportional to 20,101.23, 30,151.92 and 8,406.24

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Solution

The fourth proportional to 20,101.23, 30,151.92 and 8,406.24 is: 12,609.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.23 : 30,151.92 = 8,406.24 : x
  2. Step 2: Convert to fraction form
    20,101.23/30,151.92 = 8,406.24/x
  3. Step 3: Cross multiply
    20,101.23x = 30,151.92 × 8,406.24
  4. Step 4: Simplify right side
    20,101.23x = 253,464,275.98
  5. Step 5: Solve for x
    x = 253,464,275.98/20,101.23
  6. Step 6: Final answer
    x = 12,609.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.